I need location of brake light switch 2004 Buick rendevous. Head lights go out sometimes when braking. What could cause this besides fuses or relays?

Switch is the pedal for breaks located under the steering on right legs but beside acceleration pedal ..brake lights are located at the back of the vehicle ,and they interconnected with brakes

Many of the master cylinders have connection for a brake light pressure switch. Some also active the brake lights by placing a switch directly under the brake pedal. You may need to build your own bracket.

Light gets power from brake light switch/.May be switch got shorted an brake light getting non-stop power causing it not to turn OFF brake light.

Get the brake light switch checked. Check volt at brake light switch.

It can be faulty brake light switch causing the problem or its wiring short for switch.

==========

To trouble shoot brake related problem, check the help links mentioned below:-----

Click the link:----

1996 Buick Regal Grand Sport Brake light Switch Location?

http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

-----------

No brake lights on Buick?

http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

----------

Brake lights not working on 1989 BUICK REGAL?

http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

-------

How to replace Brake light switch on Chevrolet Tahoe?

http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

---------------

How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

----------

Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

------------

1997 Cadillac Catera: How to replace Brake Light Switch?

http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

------------

1996 Chrysler LHS brake light circuit wiring diagram?

http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

----------

How to replace rear Brake lights on 2004 Toyota RAV4?

http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

------------

One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

----------

2002 Lincoln Town car Fuse Box

http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html

2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

-------------

Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

---------

Brake lights not working

http://schematicsdiagram.blogspot.com/2012/11/brake-lights-not-working.html

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2004 Ford Mustang: Brake light Fuse Location?

http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

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These will help.

Thanks.

Turn signal tail lights and BRAKE LIGHTS NOT WORKING

It can be faulty brake light switch causing the problem or its blown brake light bulb. First check and confirm brake light lamp is working and that's not the case.

For turn signal not working it can be faulty turn signal switch or its issue with wiring:----

==========

To trouble shoot brake and turn signal related problem, check the help links mentioned below:-----

Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html

-----------
No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html

----------
Brake lights not working on 1989 BUICK REGAL?

http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

-------
How to replace Brake light switch on Chevrolet Tahoe?

http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html

---------------
How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

----------
Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

------------
1997 Cadillac Catera: How to replace Brake Light Switch?

http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html

------------

2003 Chevrolet S10 Tail light Fuse http://schematicsdiagram.blogspot.com/2012/11/2003-chevrolet-s10-tail-light-fuse.html

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Chevrolet Parking light and Tail lamp light Wiring diagram http://schematicsdiagram.blogspot.com/2012/11/chevrolet-parking-light-and-tail-lamp.html

----------
Car Tail Lights Not Working?

http://schematicsdiagram.blogspot.com/2011/12/car-tail-lights-not-working.html

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Turn Signal Not working http://technoanswers.blogspot.com/2012/11/turn-signal-not-working.html

----------
Right turn signal not working on Pontiac Car?

http://schematicsdiagram.blogspot.com/2011/12/right-turn-signal-not-working-on.html

--------
Only one side indicator light working on car?

http://schematicsdiagram.blogspot.com/2011/12/only-one-side-indicator-light-working.html

-----------
Turn signals not working on 1987 Jeep Wagoneer? http://schematicsdiagram.blogspot.com/2011/12/turn-signals-not-working-on-1987-jeep.html

1996 Chrysler LHS brake light circuit wiring diagram?

http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html

----------
How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html

------------
One brake light on driver side not working, but other lights work?

http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

----------
2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram?

http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html

-------------
Overhead Brake lights not working on 1999 GMC Sierra 4x4?

http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html

---------
2004 Ford Mustang: Brake light Fuse Location?

http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html

---------

These will help.

Thanks.

It can be faulty brake light switch causing the problem or its blown brake light bulb.First check and confirm brake light lamp is working and that's not the case.
==========
To trouble shoot brake related problem,check the help links mentioned below:-----


Click the link:----
1996 Buick Regal Grand Sport Brake light Switch Location? http://schematicsdiagram.blogspot.in/2012/04/1996-buick-regal-gran-sport-brake-light.html
----------- No brake lights on Buick? http://schematicsdiagram.blogspot.in/2012/04/no-brake-lights-on-buick.html
---------- Brake lights not working on 1989 BUICK REGAL? http://schematicsdiagram.blogspot.in/2012/04/brake-lights-not-working-on-1989-buick.html

-------
How to replace Brake light switch on Chevrolet Tahoe? http://technoanswers.blogspot.in/2012/02/how-to-replace-brake-light-switch-on.html
---------------How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

----------
Upper brake lights work, but low brake light not working?

http://schematicsdiagram.blogspot.com/2011/12/upper-brake-lights-workbut-low.html

------------
1997 Cadillac Catera: How to replace Brake Light Switch? http://howtobyme.blogspot.in/2012/06/1997-cadillac-catera-how-to-replace.html
------------1996 Chrysler LHS brake light circuit wiring diagram? http://technoanswers.blogspot.in/2012/02/1996-chrysler-lhs-brake-light-circuit.html
----------How to replace rear Brake lights on 2004 Toyota RAV4? http://schematicsdiagram.blogspot.in/2012/02/how-to-replace-rear-brake-lights-on.html
------------
One brake light on driver side not working, but other lights work? http://schematicsdiagram.blogspot.com/2011/12/one-brake-light-on-driver-side-not.html

---------- 2002 Lincoln Town car Fuse Box http://schematicsdiagram.blogspot.com/2012/11/2002-lincoln-town-car-fuse-box.html 2007 KIA Rio: Brake Light Fuse Box Diagram? http://repairhelpcenter.blogspot.in/2012/06/2007-kia-rio-brake-light-fuse-box.html
-------------Overhead Brake lights not working on 1999 GMC Sierra 4x4? http://technoanswers.blogspot.in/2012/03/overhead-brake-lights-not-working-on.html
---------2004 Ford Mustang: Brake light Fuse Location? http://howtobyme.blogspot.in/2012/05/2004-ford-mustang-brake-light-fuse.html
---------These will help.Thanks.

Check the brake light switch (location pedal) unplug the switch & bridge the wires & if the brake lights come on the switch is faulty. all you are doing by bridgeing the wires is bypassing the switch. What is SLS?

Check the brake light switch located on the brake pedal arm under the dash. It could be stuck, loose, or needs to be replaced. Also, check for a brake light relay. Could also be a loose ground wire in the trunk close to the tail lights.

could be brake light switch but i would be more inclined to think the signal switch is bad, the brake light circuit goes from the pedal to to the turn signal switch then to the taillights

All the exterior lights run threw the turn signal switch. Except the high mount brake light. If you are talking about brake lights replace the TS switch. Parking lights are a little different. If you have no parking lights front and back, TS switch. If you have front and no back, ground problem. Grounds for the back are usually on the drivers side mounted to the frame.

First, let me say that the wooden boxes are a mistery. Have not got a clue.

As for the brake lights. If the lights work with the headlights on and the directional signals work, then look for the switch not working. It is usually located directly over the brake pedal, but farther up inside the dash.
Sometimes the directional signal can cause the same thing. The brake light system runs throught the directional signal system. This is how you can have on light flashing while the other is solid red, when braking with the signal on.